Connected: An Internet Encyclopedia
RFC 1122 - 4.2.3.10 Remote Address Validation

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### 4.2.3.10 Remote Address Validation

A TCP implementation MUST reject as an error a local OPEN call for an invalid remote IP address (e.g., a broadcast or multicast address).

An incoming SYN with an invalid source address must be ignored either by TCP or by the IP layer (see Section 3.2.1.3).

A TCP implementation MUST silently discard an incoming SYN segment that is addressed to a broadcast or multicast address.

Next: 4.2.3.11 TCP Traffic Patterns

Connected: An Internet Encyclopedia
RFC 1122 - 4.2.3.10 Remote Address Validation